18988128768
18,988,128,768 is an even composite number composed of five prime numbers multiplied together.
18988128768 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 18988128768:
29 × 3 × 73 × 23 × 1567
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 7 × 7 × 23 × 1567)See below for interesting mathematical facts about the number 18988128768 from the Numbermatics database.
Names of 18988128768
- Cardinal: 18988128768 can be written as Eighteen billion, nine hundred eighty-eight million, one hundred twenty-eight thousand, seven hundred sixty-eight.
Scientific notation
- Scientific notation: 1.8988128768 × 1010
Factors of 18988128768
Divisors of 18988128768
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 23 24 28 32 42 46 48 49 56 64 69 84 92 96 98 112 128 138 147 161 168 184 192 196 224 256 276 294 322 336 343 368 384 392 448 483 512 552 588 644 672 686 736 768 784 896 966 1029 1104 1127 1176 1288 1344 1372 1472 1536 1567 1568 1792 1932 2058 2208 2254 2352 2576 2688 2744 2944 3134 3136 3381 3584 3864 4116 4416 4508 4701 4704 5152 5376 5488 5888 6268 6272 6762 7728 7889 8232 8832 9016 9402 9408 10304 10752 10969 10976 11776 12536 12544 13524 15456 15778 16464 17664 18032 18804 18816 20608 21938 21952 23667 25072 25088 27048 30912 31556 32907 32928 35328 36041 36064 37608 37632 41216 43876 43904 47334 50144 54096 61824 63112 65814 65856 72082 72128 75216 75264 76783 82432 87752 87808 94668 100288 108123 108192 123648 126224 131628 131712 144164 144256 150432 153566 175504 175616 189336 200576 216246 216384 230349 247296 252287 252448 263256 263424 288328 288512 300864 307132 351008 378672 401152 432492 432768 460698 504574 504896 526512 526848 537481 576656 577024 601728 614264 702016 756861 757344 802304 864984 865536 921396 1009148 1009792 1053024 1074962 1153312 1203456 1228528 1404032 1513722 1514688 1612443 1729968 1731072 1766009 1842792 2018296 2019584 2106048 2149924 2306624 2406912 2457056 2808064 3027444 3029376 3224886 3459936 3532018 3685584 4036592 4039168 4212096 4299848 4613248 4914112 5298027 5616128 6054888 6058752 6449772 6919872 7064036 7371168 8073184 8424192 8599696 9226496 9828224 10596054 12109776 12117504 12362063 12899544 13839744 14128072 14742336 16146368 16848384 17199392 18452992 19656448 21192108 24219552 24724126 25799088 27679488 28256144 29484672 32292736 34398784 37086189 39312896 42384216 48439104 49448252 51598176 55358976 56512288 58969344 64585472 68797568 74172378 84768432 96878208 98896504 103196352 113024576 117938688 129170944 137595136 148344756 169536864 193756416 197793008 206392704 226049152 275190272 296689512 339073728 387512832 395586016 412785408 452098304 593379024 678147456 791172032 825570816 904196608 1186758048 1356294912 1582344064 2373516096 2712589824 3164688128 4747032192 6329376256 9494064384 18988128768
- Sum of all divisors σ(n): 61596057600
- Sum of proper divisors (its aliquot sum) s(n): 42607928832
- 18988128768 is an abundant number, because the sum of its proper divisors (42607928832) is greater than itself. Its abundance is 23619800064
Bases of 18988128768
- Binary: 100011010111100011111011010000000002
- Hexadecimal: 0x46BC7DA00
- Base-36: 8Q11HXC
Squares and roots of 18988128768
- 18988128768 squared (189881287682) is 360549034110149197824
- 18988128768 cubed (189881287683) is 6846151486861537263974017400832
-
The
square root of 18988128768 is 137797.4193082005 -
The
cube root of 18988128768 is 2667.8457923245
Scales and comparisons
How big is 18988128768?- 18,988,128,768 seconds is equal to 603 years, 39 weeks, 5 days, 12 minutes, 48 seconds.
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To count from 1 to 18,988,128,768 would take you about one thousand, two hundred seven years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 18988128768 cubic inches would be around 222.3 feet tall.
Recreational maths with 18988128768
- 18988128768 backwards is 86782188981
- The number of decimal digits it has is: 11
- The sum of 18988128768's digits is 66
- More coming soon!
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